Technical description and composition of the AKAI LTA-32N688HCP TV, panel type and applicable modules. The composition of the modules.AKAI
Model: LTA-32N688HCP
Chassis / Version: JUG 7.820.684 LS06
Panel: LC 320WXN (SB) (D1)
T-CON: LC320WXN-SBA1 6870C-0238B
Power Supply (PSU): HX 7.820.024 V2.0 model: R-HS210-4N02-3
MainBoard: JUG7.820.684 LS06
IC MainBoard: MST6M16JS-LF, D1216AJTA-4B-E, 24LC64B, MP2309DS, TDA7266SA
Technical Specifications LTA-32N688HCP
AKAI LTA-32N688HCP
General recommendations for repairing TV LCD
Possible manifestations of defects
- The AKAI LTA-32N688HCP TV does not turn on, does not respond to the remote control and control panel buttons, and does not blink with any indicators.
Typically, with such manifestations, the defect is caused by faulty elements in the HX main power module. It is necessary to measure the output voltages in the secondary circuits, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for a short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse usually breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke the excess of maximum current or voltage values. It can be supply, damper circuits, or elements of OOS (negative feedback) stabilization. The reason for the breakdown of the power switch may be PWM (PWM). It is checked only by replacement with a known good one.
- There is no image, there is sound, it responds to the remote control, the channels are switched. In some cases, the image appears when you turn on and immediately disappears.
The defect can be caused by problems in the nodes or elements of the backlight of the display, or in the power supply of the lamps or the inverter.After checking all the electrolytic capacitors of the filters that are involved in the power supply of the inverter, you must ring in its converter power keys for breakdown and secondary windings of transformers for an open.
If in diagnosing a malfunction, it is necessary to disable the inverter protection, there is a risk of failure of the power elements of the inverter, and special care is required during work, and after their completion, it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
- The indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the JUG motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). In some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - MST6M16JS-LF, D1216AJTA-4B-E, 24LC64B, MP2309DS, TDA7266SA with new or obviously working ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
We recommend the owners of the LTA-32N688HCP TV for repair only to qualified specialists with the necessary work experience! Self-repair attempts without the appropriate knowledge and skills can lead to irreversible negative consequences!
Key features of the AKAI LTA-32N688HCP device:
Installed matrix (LCD panel) LC 320WXN (SB) (D1).
The matrix control uses the Timing Controller (T-CON) LC320WXN-SBA1.
The formation of the necessary supply voltages for all nodes of the TV AKAI LTA-32N688HCP is carried out by the HX power module, or its analogues.
MainBoard - the main board (motherboard) is a JUG7.820.684 module, using microchips MST6M16JS-LF, D1216AJTA-4B-E, 24LC64B, MP2309DS, TDA7266SA and others.
Brand: AKAI, Model: LTA-32N688HCP.
Shortly from the TV: LCD, 720p HD, 32 "(81 cm) diagonal, HDMI: 2, PIP.
The composition uses MainBoard JUG 7.820.684 LS06 and LCD panel (matrix) LC 320WXN (SB) (D1).
Power Supply Unit (PSU) HX 7.820.024 V2.0 model: R-HS210-4N02-3 Power Supply.
AKAI LTA-32N688HCP TV with 32 "(81 cm) diagonal LCD display in 16: 9 format. 450 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. The ratio of maximum brightness to minimum (contrast) is 4000: 1. It is possible to view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standard 480i, 480p, 576i, 576p, 720p, 1080i.
The power of the sound system 10 W (2x5 W) provide two speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV x2, audio x5, S-Video, component x2, VGA, HDMI x2. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
The power consumed by the TV working in the network mode is 150 watts.
Overall dimensions: With stand 772x546x200 mm, Without stand 772x486x46 mm.
TV Weight: 14 kg.
Attention! The AKAI LTA-32N688HCP LCD panel LC 320WXN (SB) (D1) is the most expensive of its components.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!